... headaches, but I am having periods every two weeks. Also, as I exercise a lot and sweat, the patch is needing to be replaced every 4 to 5 days. I had no periods for a year prior to starting Climara and was wondering if frequent periods are common with this drug. Also, the manufacturer should switch the patch to a biweekly application as it gets extremely dingy around edges (tacky looking) and falls off before the week is over.